{"id":"vidhyamitra:city-day:erode:2026-01-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2026-01-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2026-01-13","date_display":"January 13, 2026 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2026,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461053.770833,"kali_year":5127,"ahargana":1872588.2708,"sun":{"sidereal_longitude":268.4408,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":202.6168,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":294.176,"elapsed_within_tithi_degrees":6.176},"nakshatra":{"number":16,"name":"Viśākhā","pada":1,"moon_longitude":202.6168,"elapsed_within_degrees":2.6168},"yoga":{"number":9,"name":"Śūla","sum_longitude":111.0576},"karana":{"half_tithi_index":49,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":2026,"month":1,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461053.770833,"ahargana":1872588.2708,"kali_year":5127,"ayanamsa_lahiri":24.2167,"grahas":{"sun":{"sidereal_longitude":268.632705,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":204.65140500000007,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false,"latitude":-3.9483},"mars":{"sidereal_longitude":267.3622049999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":262.94530499999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":85.381505,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":true},"venus":{"sidereal_longitude":269.805205,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":332.84810500000003,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":321.2619,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":141.2619,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2026,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461053.770833,"kali_year":5127,"ahargana":1872588.2708,"sun":{"sidereal_longitude":268.4408,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":202.6168,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":294.176,"elapsed_within_tithi_degrees":6.176},"nakshatra":{"number":16,"name":"Viśākhā","pada":1,"moon_longitude":202.6168,"elapsed_within_degrees":2.6168},"yoga":{"number":9,"name":"Śūla","sum_longitude":111.0576},"karana":{"half_tithi_index":49,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.948,"elongation":65.824},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.948,"opposition_distance":114.176}},"eclipse_window_40days":[]},"city":{"slug":"erode","name":"Erode, Tamil Nadu","lat":11.341,"lon":77.7172,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"erode","name":"Erode, Tamil Nadu","lat":11.341,"lon":77.7172,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"sunriseLocal":"06:42","sunsetLocal":"18:13","solarNoonLocal":"12:28","dayLengthHours":11.517839630953494,"dayLengthDisplay":"11 Hours 31 Mins 04 Secs","nightLengthDisplay":"12 Hours 28 Mins 56 Secs","moonriseLocal":"02:24","moonsetLocal":"14:00","rahuKala":{"name":"Rāhu Kāla","start":"15:21","end":"16:47","startHours":15.3422454325946,"endHours":16.781975386463788,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:35","end":"11:01","startHours":9.583325617117854,"endHours":11.02305557098704,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:28","end":"13:54","startHours":12.462785524856226,"endHours":13.902515478725414,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:23","end":"09:47","startHours":9.39136162326863,"endHours":9.775289610967079,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:11","end":"07:29","startHours":7.183775694002542,"endHours":7.490918084161303,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:51","startHours":12.078857537157777,"endHours":12.846713512554675,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:10","end":"05:56","startHours":5.168153758585681,"endHours":5.93600973398258,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:45","end":"06:42","startHours":5.744045740133355,"endHours":6.70386570937948,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:23","end":"15:09","startHours":14.382425463348476,"endHours":15.150281438745376,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:01","end":"18:25","startHours":18.021705340332975,"endHours":18.421705340332974,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:13","end":"18:42","startHours":18.221705340332974,"endHours":18.701615324956038,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:58","end":"19:43","startHours":17.971705340332974,"endHours":19.721705340332974,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:51","startHours":24.078857537157777,"endHours":24.846713512554675,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:42","end":"08:09","startHours":6.70386570937948,"endHours":8.143595663248666,"quality":"inauspicious"},{"name":"Udveg","start":"08:09","end":"09:35","startHours":8.143595663248666,"endHours":9.583325617117854,"quality":"inauspicious"},{"name":"Chala","start":"09:35","end":"11:01","startHours":9.583325617117854,"endHours":11.02305557098704,"quality":"neutral"},{"name":"Labha","start":"11:01","end":"12:28","startHours":11.02305557098704,"endHours":12.462785524856226,"quality":"auspicious"},{"name":"Amṛta","start":"12:28","end":"13:54","startHours":12.462785524856226,"endHours":13.902515478725414,"quality":"auspicious"},{"name":"Kāla","start":"13:54","end":"15:21","startHours":13.902515478725414,"endHours":15.3422454325946,"quality":"inauspicious"},{"name":"Śubha","start":"15:21","end":"16:47","startHours":15.3422454325946,"endHours":16.781975386463788,"quality":"auspicious"},{"name":"Roga","start":"16:47","end":"18:13","startHours":16.781975386463788,"endHours":18.221705340332974,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:13","end":"19:47","startHours":18.221705340332974,"endHours":19.781975386463788,"quality":"inauspicious"},{"name":"Śubha","start":"19:47","end":"21:21","startHours":19.781975386463788,"endHours":21.342245432594602,"quality":"auspicious"},{"name":"Roga","start":"21:21","end":"22:54","startHours":21.342245432594602,"endHours":22.902515478725412,"quality":"inauspicious"},{"name":"Udveg","start":"22:54","end":"00:28","startHours":22.902515478725412,"endHours":24.462785524856226,"quality":"inauspicious"},{"name":"Chala","start":"00:28","end":"02:01","startHours":24.462785524856226,"endHours":26.02305557098704,"quality":"neutral"},{"name":"Labha","start":"02:01","end":"03:35","startHours":26.02305557098704,"endHours":27.583325617117854,"quality":"auspicious"},{"name":"Amṛta","start":"03:35","end":"05:09","startHours":27.583325617117854,"endHours":29.143595663248668,"quality":"auspicious"},{"name":"Kāla","start":"05:09","end":"06:42","startHours":29.143595663248668,"endHours":30.70386570937948,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:42","end":"07:42","startHours":6.70386570937948,"endHours":7.70386570937948,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:42","end":"08:42","startHours":7.70386570937948,"endHours":8.70386570937948,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:42","end":"09:42","startHours":8.70386570937948,"endHours":9.70386570937948,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:42","end":"10:42","startHours":9.70386570937948,"endHours":10.70386570937948,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:42","end":"11:42","startHours":10.70386570937948,"endHours":11.70386570937948,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:42","end":"12:42","startHours":11.70386570937948,"endHours":12.70386570937948,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:42","end":"13:42","startHours":12.70386570937948,"endHours":13.70386570937948,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:42","end":"14:42","startHours":13.70386570937948,"endHours":14.70386570937948,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:42","end":"15:42","startHours":14.70386570937948,"endHours":15.70386570937948,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:42","end":"16:42","startHours":15.70386570937948,"endHours":16.70386570937948,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:42","end":"17:42","startHours":16.70386570937948,"endHours":17.70386570937948,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:42","end":"18:42","startHours":17.70386570937948,"endHours":18.70386570937948,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:42","end":"19:42","startHours":18.70386570937948,"endHours":19.70386570937948,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:42","end":"20:42","startHours":19.70386570937948,"endHours":20.70386570937948,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:42","end":"21:42","startHours":20.70386570937948,"endHours":21.70386570937948,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:42","end":"22:42","startHours":21.70386570937948,"endHours":22.70386570937948,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:42","end":"23:42","startHours":22.70386570937948,"endHours":23.70386570937948,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:42","end":"00:42","startHours":23.70386570937948,"endHours":24.70386570937948,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:42","end":"01:42","startHours":24.70386570937948,"endHours":25.70386570937948,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:42","end":"02:42","startHours":25.70386570937948,"endHours":26.70386570937948,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:42","end":"03:42","startHours":26.70386570937948,"endHours":27.70386570937948,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:42","end":"04:42","startHours":27.70386570937948,"endHours":28.70386570937948,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:42","end":"05:42","startHours":28.70386570937948,"endHours":29.70386570937948,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:42","end":"06:42","startHours":29.70386570937948,"endHours":30.70386570937948,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"North","rahuVasa":"North","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-21.501270788363026,"eotMinutes":-8.635931491373626,"ayanamsa":24.2167}},"calendars":{"vikram_samvat":2083,"vikram_samvatsara":"Siddhārthī","saka_samvat":1948,"saka_samvatsara":"Parābhava","bengali_samvat":1433,"malayalam_era":1202,"nanakshahi_year":557,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Daśamī · Vikram 2083 Siddhārthī · Śaka 1948 Parābhava"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"erode"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 13, 2026 CE · Erode, Tamil Nadu · Vidhyamitra","description":"January 13, 2026 CE for Erode, Tamil Nadu: Kṛṣṇa Daśamī, sūryodaya 06:42, sūryāsta 18:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2026-01-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2026-01-13","sa":"https://sa.vidhyamitra.com/city/erode/2026-01-13","hi":"https://hi.vidhyamitra.com/city/erode/2026-01-13","x-default":"https://vidhyamitra.com/city/erode/2026-01-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T19:45:22.912Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-05-14T19:45:22.912Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T19:45:22.912Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}